21716084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{417617}}^1$

素因数の和:417634

約数の個数: 12

約数和(自身を含む): 40926564

約数和(自身を除く): 19210480

約数列:

[1, 2, 4, 13, 26, 52, 417617, 835234, 1670468, 5429021, 10858042, 21716084]

約数ペア:

[(1, 21716084), (2, 10858042), (4, 5429021), (13, 1670468), (26, 835234), (52, 417617)]